Well it’s obvious why he/she isn’t wearing pants. With a torso that long he/she would have to wear a cummerbund, sash, and belt to cover the gap between the pants and waistcoat. And everyone knows cats are notoriously bad when it comes to accessorizing .

“Karl is offered a job by a manageress at Hotel Occidental. He works there as a lift-boy. One day Robinson shows up drunk at his work asking him for money. Afraid of losing his job being seen talking with a friend, which is forbidden for lift-boys, Karl agrees to lend him money, then turns into a cat.”